The shell size varies between 7 mm and 20 mm. The very solid, thick, narrowly perforated shell has a conical shape and is elevated. It is ashen-white, with longitudinal chestnut streaks or maculations. The
spire is elevated. The
apex is acute. The
sutures are slightly impressed, the
whorl below them closely appressed. The shell contains 6 to 7 whorls. The upper ones are subangular and nodulose in the middle. The
body whorl shows a coronal series of knobs, on large specimens becoming obsolete toward the
aperture. The entire surface is traversed by spiral lirulae, much narrower than the densely obliquely striate interstices. The oblique, ovate aperture is about half the length of shell. The outer
lip is bevelled to an edge. The aperture is spirally lirate. The edge of the
columella is denticulate. Its upper insertion is callous, partly or nearly covering the
umbilicus. Young specimens are subbiangulate with nodulose periphery. ==Distribution==